Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 17
Bibb-Cock. Bibb Compression. Bibb Compression. A bibb-cock having in place of the plug astem with thread and handle to open by unscrewing; thevalve contains fibrous packing and is made tight by com-pression. Bonnets. These are covers for the opening into valve chambersof pumps. Glossary of Pump and…
Hydraulic machinery · Pumping machinery
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